Yes, I'm still looking for the right [experienced] gal to give me a ride in this alternative manner. She must be capable of starting slowly, but going the distance and finishing strong. She must also be able to ride one-handed so she has a free hand for me.
I'm quite flexible and a bit athletic, so she's not going to hurt me unless she's really trying.

Any takers out there? Any suggestions based on experience? [not just, "I've heard that .."]